wireless record player

the program, a total of three lifts, each building 20-story, elevator speed each two seconds.

本程序一共有三个电梯，每幢楼20层，电梯运行速度每层两秒。

present situation and development of mine elevator speed protection

矿井提升机速度保护的现状与发展

research on the microcomputer control of the hydraulic elevator speed system

液压电梯速度系统的微机控制研究

research on vvvf elevator speed control based on absolute surplus distant

VVVF电梯的绝对剩余距离的速度控制研究

research on elevator speed control

电梯的速度优化控制研究

When the elevator speed to the speed limiter action speed, speed limiter action.

当电梯超速到限速器的动作速度时, 限速器动作.

application of digital pid controller's in elevator speed control systems

数字PID控制器在升降机调速系统中的应用

After the combine harvest test, calibration equations were found for header height sensor and elevator speed sensor; and real time calibration methods were proposed for grain flow sensor and ground speed sensor.

鲁迅的当代接受通过在联合收割机上的联机调试，得到了割台高度传感器和升运器转速传感器的标定方程，提出了谷物流量传感器和地速传感器的实时标定方法。

In order to meet the requirements for elevator speed control system with permanent magnet synchronous motor, the advanced PID control and fuzzy self-tuning PID control are brought up. The result is verified through simulation by MATLAB.

为了满足电梯对永磁同步电机调速控制的要求，分别设计了基于先进PID控制和模糊自整定PID控制的控制器，并利用Matlab进行仿真验证。

test system based on virtual instrumentation for elevator speed-limiting device

基于虚拟仪器的电梯限速器测试系统

elevator speed control based on absolute surplus distance

绝对剩余距离为原则的电梯速度控制方式